The paper investigates the characteristic of frequency in nonlinear autonomous chaotic systems, controlling chaos via the viable time-delayed feedback control (DFC) method, improving the efficiency of DFC method through linear invertible transform, noose target and target waves and spatial disorder under different conditions in the two coupled lattices.

Though lacking well considered theory about application of lead isotopes to geochemical exploration and evaluation of deposits, we have succeeded in prospecting Au, Cu, Pb, Zn and U deposits with the method of lead isotope targeting and geochemical exploration of lead isotopes along the field section systems.

Experiment results indicate that oil & gas well perforating simulator shows its high safety performance and operational convenience in laboratory, with perforating target highly recyclable.

Design and implementation of flexible chromatography printing component;

This paper developed a method of establishing a chromatography printing model that can print text properly fitted into one or more reserved spaces with certain trim sizes at certain positions of a document, such as a form, bill, or any type of a pre designed and printed document.

Solutions of an precise postbuckling model of compressed rod clamped at the both ends by a shooting method;

An exact model of thermal post buckling of elastic bars and shooting method for its solution;

The steady-state solution of one-dimensional Schrdinger equation with the shooting method